<?php
$id=$_GET['id'];
$a=$_GET['a'];
$b=$_GET['b'];
?>
<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>add</title>
</head>
<body>
	<form action="doupdate.php" method="get">
	<input type="hidden" name='id' value="<?php echo $id?>">
栏目名称：<input type="text" name='mingcheng' value="<?php echo $a?>"><br>
 栏目描述：<input type="text" name='miaoshu'  value="<?php echo $b?>"><br>
        <input type="submit"  value="提交">
	</form>
</body>
</html>